atrioventrikulaarsõlm
The atrioventricular node, or AV node, is a crucial component of the heart's electrical conduction system. Located in the interatrial septum of the heart, near the junction of the atria and ventricles, it acts as a critical relay station for electrical impulses originating in the atria. These impulses, generated by the sinoatrial (SA) node, initiate atrial contraction.
Upon reaching the AV node, the electrical signal is briefly delayed. This delay is vital as it
Following the delay, the electrical impulse is rapidly conducted through the AV node into the bundle of